To best fit your requirements, MAAS offers several installation options:
- Snap. The quickest and easiest way to install MAAS. Benefits from autonomous upgrades and direct access to beta and developmental versions
- Packages. Versatile deb-based installation with manual control over where specific components are placed, when upgrades are applied, and where packages are installed from
- Ubuntu Server ISO. Conveniently install MAAS as you provision a new server
Additionally, you may want to consider an installation within LXD containers. This allows MAAS nodes to also run as local containers and is ideal for testing and experimenting with MAAS.
Note: Implementing high availability via snaps is not yet possible. See MAAS HA for more on that topic.
Snaps are containerised software packages. To install MAAS from a snap, simply enter the following:
sudo snap install maas --devmode --stable
After entering your password, the snap will download and install from the stable channel. However, MAAS needs initialising before it's ready to go.
The next step involves initialising MAAS with a run mode. Selecting one of the following modes dictates what services will run on the local system:
all- All services
region- A region API server only (no database)
rack- A rack controller only
region+rack- A region API server and a rack controller (no database)
This list is different from the installation scenarios covered in the package install method (see Install from packages) where the installation of a "region controller" will include a database.
To initialise MAAS and select a run mode, use the
maas init command with the
Here, the typical all-in-one design (mode 'all') will be chosen as an example:
sudo maas init --mode all
A dialog will appear that will gather some basic information:
MAAS URL [default=http://10.55.60.1:5240/MAAS]: http://192.168.122.1:5240/MAAS Create first admin account: Username: admin Password: ****** Again: ****** Email: email@example.com Import SSH keys  (lp:user-id or gh:user-id): lp:petermatulis
Each run mode will prompt for a MAAS URL. The 'all' mode will use this for the creation of a new region controller whereas the other three modes will interpret it as the URL for an existing region controller.
The 'rack' and 'region+rack' modes will additionally ask for the shared secret that will allow the new rack controller to register with the region controller.
A re-initialization is easily achieved. For example, to switch from one mode to another, say 'region', simply state it:
sudo maas init --mode region
After a snap installation of MAAS, a verification of the currently running configuration can be done with:
sudo maas config
Sample output (for mode 'all'):
Mode: all Settings: maas_url=http://192.168.122.1:5240/MAAS
The status of running services can likewise be checked:
sudo maas status
Sample output (for mode 'all'):
bind9 RUNNING pid 7999, uptime 0:09:17 dhcpd STOPPED Not started dhcpd6 STOPPED Not started ntp RUNNING pid 8598, uptime 0:05:42 postgresql RUNNING pid 8001, uptime 0:09:17 proxy STOPPED Not started rackd RUNNING pid 8000, uptime 0:09:17 regiond:regiond-0 RUNNING pid 8003, uptime 0:09:17 regiond:regiond-1 RUNNING pid 8008, uptime 0:09:17 regiond:regiond-2 RUNNING pid 8005, uptime 0:09:17 regiond:regiond-3 RUNNING pid 8015, uptime 0:09:17 tgt RUNNING pid 8040, uptime 0:09:15
With MAAS installed and initialised, you can now open the web UI in your browser. See Access the web UI for further details.